Object Oriented Design courses can help you learn principles like encapsulation, inheritance, and polymorphism, along with design patterns such as Singleton and Factory. You can build skills in creating reusable code, improving software maintainability, and designing systems that are easier to understand and extend. Many courses introduce tools like UML for modeling, as well as programming languages such as Java and Python, which are commonly used to implement object-oriented concepts in real-world applications.

Skills you'll gain: Database Administration, Database Management, Interactive Data Visualization, Databases, Database Design, Relational Databases, Data Sharing
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Maintainability, Code Review, Testability, Debugging, Style Guides, Software Documentation, Software Design Patterns, Programming Principles, Quality Assurance
Intermediate · Course · 1 - 4 Weeks

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Data Structures, Distributed Computing, Programming Principles, Algorithms, Performance Tuning, Functional Design, Performance Testing, Computer Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Unreal Engine, Animation and Game Design, Game Design, Animations, Video Game Development, Artificial Intelligence, Augmented and Virtual Reality (AR/VR), User Interface (UI)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Digital Advertising, Online Advertising, Campaign Management, Advertising, Advertising Campaigns, Marketing, Social Media Campaigns, Marketing Management, Generative AI Agents, Budget Management, Target Audience
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Event-Driven Programming, Web Applications, Javascript, Data Import/Export, Web Development Tools, Data Management, Web Development, User Interface (UI), Data Validation, Debugging
Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: White-Box Testing, Test Planning, Test Case, Software Testing, Debugging, Functional Testing, Software Documentation, Software Quality Assurance, Development Testing, Test Data, Issue Tracking, Software Technical Review, Quality Assurance, Development Environment, Technical Communication
Beginner · Course · 1 - 4 Weeks

Universitat Politècnica de València
Skills you'll gain: SQL, Data Integrity, Database Management, Relational Databases, Database Systems, Databases, Query Languages, Database Design, Web Applications, Application Security, Server Side, Data Manipulation
Beginner · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Spring Boot, Application Development, Redis, Java, Hibernate (Java), Web Development, Database Development, Authentications, Application Security, Performance Tuning, Unit Testing, Command-Line Interface, Event Monitoring, Software Configuration Management
Mixed · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Sustainable Business, Corporate Sustainability, Environmental Social And Corporate Governance (ESG), Marketing Communications, Brand Marketing, Advertising, Regulatory Compliance, Market Opportunities, Environmental Issue, Ethical Standards And Conduct, Digital Marketing, Engineering Management, Emerging Technologies
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Canva (Software), Color Theory, Photo Editing, Graphic and Visual Design, Layout Design, Graphic Design, Typography, Image Quality, Content Creation, Creativity, Content Marketing, Digital Marketing
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: JSON, API Testing, Restful API, Software Quality Assurance, Software Engineering, Test Script Development, Java, Data Mapping, Software Testing, Test Case, Test Data
Mixed · Course · 1 - 4 Weeks